摘要
目前石油溢出或者地下储油罐泄漏等原因引起的土壤和地下水非水相流体(NAPL s)污染问题越来越引起人们的关注,由NAPL s、水和气所组成的两相或三相系统中的多相流问题亦是当前的研究热点。其中毛细压力(h),饱和度(S)和相对渗透率(k)是多孔介质多相流研究中的三个重要参数,在多相流室内试验研究中是主要的物理监测量,而且三者之间基本关系式的确定是多相流模拟时进行流动控制方程求解的前提条件。本文从室内试验和模型关系两个方面综述了土壤中NAPL s、水和气所组成的多相流系统中毛细压力、饱和度和相对渗透率以及它们之间相关关系的确定方法。
Contamination of groundwater and soil by non-aqueous phase liquids （NAPLs）, due to leakage from underground storage tanks and accidental spill of petroleum, is an environmental concern, and multiphase flow of NAPLs-water-air two-phase or three-phase systems is also a study issue at present. Capillary pressure （h）, saturation （S） and relative permeability （k）are three important parameters in study on multiphase flow in porous media, which are main measurement parameters in laboratory experiments, and determination of constitutive relations between them is the basis for solution of governing equations of multiphase flow in multiphase flow modeling. This paper summarized the determination of the three parameters and their relations, making use of laboratory experiments and parametric models in NAPLs-water-air multi-fluid soil system.
出处
《地质灾害与环境保护》
2005年第4期410-414,共5页
Journal of Geological Hazards and Environment Preservation
基金
国家自然科学基金资助项目(40272107)
